Anonymous function: Difference between revisions

Revision as of 19:09, 24 June 2023

Revision as of 19:14, 24 June 2023

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Since [[C++14]], the function parameters of a lambda can be declared with <code>auto</code>. The resulting lambda is called a ''generic lambda'' and is essentially an anonymous function template since the rules for type deduction of the auto parameters are the rules of template argument deduction. As of [[C++20]], template parameters can also be declared explicitly with the following syntax:

<syntaxhighlight lang="cpp">

[ captures ] < tparams > requires (optional) ( params ) specs requires (optional) { body }

[capture] <tparameters> (parameters) trailing_return_type { function_body }

</syntaxhighlight>